Android imitation of today's headline simple refresh effect instance code _android

Click on the button, the first automatic Drop-down refresh, you can manually refresh, after the refresh, the last one more than one row of data. There are four tabs.

A couple of days ago, the instructor asked to make a reservation for an undergraduate student in the room, starting from here. Do do to meet a lot of problems, have been solved. This effect feels good, tidy up.

Mainactivity

Package com.example.fragmentmytest;
Import Android.content.DialogInterface;
Import Android.graphics.Color;
Import Android.os.Bundle;
Import android.support.v4.app.FragmentActivity;
Import Android.support.v4.app.FragmentManager;
Import android.support.v4.app.FragmentTransaction;
Import Android.text.TextUtils;
Import Android.view.Menu;
Import Android.view.MenuItem;
Import Android.view.View;
Import Android.view.View.OnClickListener;
Import Android.widget.Button;
Import Android.widget.TextView;
Import Com.example.dialog.CustomDialog;
Import COM.EXAMPLE.DIALOG.CUSTOMDIALOGCHANGEPWD;
Import com.example.dialog.CustomDialogSignUp;
Import com.example.myapplication.CustomApplication;
Import Com.example.utils.ToastUtils; public class Mainactivity extends fragmentactivity {public static final String serveraddress = "http://192.168.1.101"; pu
Blic static final String ServerPort = "8080";
Onefragment onefragment;
Twofragment twofragment;
Threefragment threefragment;
Fourfragment fourfragment; Button btn1, Btn2, Btn3, Btn4;
Onclicklistener Clicklistener;
TextView stu_msg;
Private CustomApplication app;
/** * for the Fragment management * * Fragmentmanager Fragementmanager; protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (
R.layout.activity_main); App = (customapplication) getapplication ();
Get CustomApplication object//must inherit fragmentactivity to use Getsupportfragmentmanager (); it's best to use V4.app, it's not how anyone uses the app.
Fragementmanager = Getsupportfragmentmanager ();
Init (); 
The No. 0 tab settabselection (0) is selected on the first startup and/or the default value that cannot be slid left and right} is public void init () {stu_msg = (TextView) Findviewbyid (r.id.stu_msg);
BTN1 = (Button) Findviewbyid (R.ID.BTN1);
BTN2 = (Button) Findviewbyid (R.ID.BTN2);
Btn3 = (Button) Findviewbyid (R.ID.BTN3);
Btn4 = (Button) Findviewbyid (R.ID.BTN4); Clicklistener = new Onclicklistener () {public void OnClick (View arg0) {int id = arg0.getid (), switch (ID) {Case r.id.bt
N1:settabselection (0);
Break
Case R.id.btn2:settabselection (1);
Break Case R.id.btn3:sEttabselection (2);
Break
Case R.id.btn4:settabselection (3);
Break
Default:break;
}
}
};
Btn1.setonclicklistener (Clicklistener);
Btn2.setonclicklistener (Clicklistener);
Btn3.setonclicklistener (Clicklistener);
Btn4.setonclicklistener (Clicklistener); private void settabselection (int index) {clearselection ();//Clear the last selected state/open a fragment transaction before each check fragmenttransaction t
Ransaction = Fragementmanager.begintransaction ();
Hide all the fragment first to prevent multiple fragment from appearing on the interface Hidefragements (transaction); Switch (index) {case 0:btn1.setbackgroundcolor (Color.parsecolor ("#CFEFEF")); Btn1.settextcolor (Color.parsecolor ("#
FFFFFF "));
App.setroom (Btn1.gettext (). toString ()); if (onefragment = = null) {onefragment = new onefragment (); Transaction.add (R.id.framelayout, onefragment);} else {trans
Action.show (onefragment);
Onefragment.mPullRefreshListView.setRefreshing (TRUE);
} break;
Case 1:btn2.setbackgroundcolor (Color.parsecolor ("#CFEFEF"));
Btn2.settextcolor (Color.parsecolor ("#FFFFFF")); App.setroom (btn2.GetText (). toString ()); if (twofragment = = null) {twofragment = new twofragment (); Transaction.add (R.id.framelayout, twofragment);} else {trans
Action.show (twofragment);
Twofragment.mPullRefreshListView.setRefreshing (TRUE);
} break;
Case 2:btn3.setbackgroundcolor (Color.parsecolor ("#CFEFEF"));
Btn3.settextcolor (Color.parsecolor ("#FFFFFF"));
App.setroom (Btn3.gettext (). toString ());  if (threefragment = = null) {threefragment = new threefragment (); Transaction.add (R.id.framelayout, threefragment); else
{transaction.show (threefragment); threefragment.mPullRefreshListView.setRefreshing (true);} break;
Case 3:btn4.setbackgroundcolor (Color.parsecolor ("#CFEFEF"));
Btn4.settextcolor (Color.parsecolor ("#FFFFFF"));
App.setroom (Btn4.gettext (). toString ()); if (fourfragment = = null) {fourfragment = new fourfragment (); Transaction.add (R.id.framelayout, fourfragment);} else {T
Ransaction.show (fourfragment);
Fourfragment.mPullRefreshListView.setRefreshing (TRUE);
} break;
Default:break; } TransactIon.commit ();
/** * Clears all selected states. * * private void ClearSelection () {Btn1.setbackgroundcolor (Color.parsecolor ("#EFEFEF")); Btn1.settextcolor (
Color.parsecolor ("#234567"));
Btn2.setbackgroundcolor (Color.parsecolor ("#EFEFEF"));
Btn2.settextcolor (Color.parsecolor ("#234567"));
Btn3.setbackgroundcolor (Color.parsecolor ("#EFEFEF"));
Btn3.settextcolor (Color.parsecolor ("#234567"));
Btn4.setbackgroundcolor (Color.parsecolor ("#EFEFEF"));
Btn4.settextcolor (Color.parsecolor ("#234567"));
/** * All fragment are placed in a hidden state. * * @param transaction * The transaction to perform operations on fragment/private void Hidefragements (Fragmenttransaction transaction) {if Onefrag ment!= null) {transaction.hide (onefragment);} if (twofragment!= null) {transaction.hide (twofragment);} if (Threefrag
ment!= null) {transaction.hide (threefragment);} if (fourfragment!= null) {transaction.hide (fourfragment);}} }

Four fragment are similar, here is the first:

Package com.example.fragmentmytest;
Import java.util.ArrayList;
Import java.util.LinkedList;
Import java.util.List;
Import android.app.Activity;
Import Android.os.AsyncTask;
Import Android.os.Bundle;
Import android.support.v4.app.Fragment;
Import Android.util.Log;
Import Android.view.LayoutInflater;
Import Android.view.View;
Import Android.view.ViewGroup;
Import Android.widget.AdapterView;
Import Android.widget.ArrayAdapter;
Import Android.widget.AdapterView.OnItemClickListener;
Import Android.widget.ListView;
Import Com.example.adapter.MyAdapter;
Import Com.example.dao.ComputerRoomStatus;
Import Com.example.utils.ToastUtils;
Import Com.handmark.pulltorefresh.library.PullToRefreshBase;
Import Com.handmark.pulltorefresh.library.PullToRefreshBase.Mode;
Import Com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener2;
Import Com.handmark.pulltorefresh.library.PullToRefreshListView; public class Onefragment extends Fragment {String room = ' 204 '; public pulltorefreshlistview Mpullrefreshlistview;
Private arrayadapter<string> Madapter;
private int mitemcount = 9;
Private linkedlist<string> Mlistitems;
Private Myadapter Madapter;
Private list<computerroomstatus> data; public view Oncreateview (Layoutinflater inflater, ViewGroup container, Bundle savedinstancestatus) {View view = Inflater.
Inflate (R.layout.twolayout, container, false);
Mpullrefreshlistview = (pulltorefreshlistview) view. Findviewbyid (r.id.pull_refresh_list_2);
Mpullrefreshlistview.setmode (Mode.pull_from_start);
return view; @Override public void onviewcreated (view view, Bundle savedinstancestate) {//TODO auto-generated a stub super.onv
iewcreated (view, savedinstancestate);
Initdatas ();
MAdapter1 = new Myadapter (getactivity (), data);
Madapter = new Myadapter (getactivity (), data, Room,mpullrefreshlistview);
Mpullrefreshlistview.setadapter (Madapter); Mpullrefreshlistview. Setonrefreshlistener (New onrefreshlistener2<listview> () {@Override public void OnpuLldowntorefresh (pulltorefreshbase<listview> refreshview) {log.e ("TAG", "Onpulldowntorefresh");//here Write down pull refresh task
New Getdatatask (). Execute (); @Override public void Onpulluptorefresh (pulltorefreshbase<listview> refreshview) {log.e ("TAG", "
Onpulluptorefresh ");
Here write pull load More tasks New Getdatatask (). Execute ();
}
});
Mpullrefreshlistview.setrefreshing (TRUE); private void Initdatas () {//INIT data and data Source = new arraylist<computerroomstatus> (); for (int i = 0; i < Mitemco Unt
i++) {Data.add (new Computerroomstatus (I, "1", "1", "3", "1", "1", "1"))} protected void AutoRefresh () {mpullrefreshlistview.setrefreshing (true);}//Request network interface, here is done fake data private class Getdatatask E Xtends asynctask<void, void, string> {@Override protected String doinbackground (void ... params) {try {//TODO parse J
Son Thread.Sleep (1000);
catch (Interruptedexception e) {} return "" + (mitemcount++);} @Override protected void OnPostExecute (String result) {//Data.add (New//Computerroomstatus (1, Result,result,result,result,result,result));
Data.add (new Computerroomstatus (Result), "", "", "3", "1", "1", "1"));
Madapter.notifydatasetchanged ();
Mpullrefreshlistview.onrefreshcomplete (); }
}
}

Myadapter

Package com.example.adapter;
Import java.util.List;
Import Android.content.Context;
Import Android.content.DialogInterface;
Import android.content.res.ColorStateList;
Import Android.graphics.Color;
Import Android.text.TextUtils;
Import Android.view.LayoutInflater;
Import Android.view.View;
Import Android.view.ViewGroup;
Import Android.widget.BaseAdapter;
Import Android.widget.Button;
Import Android.widget.TextView;
Import Com.example.dao.ComputerRoomStatus;
Import Com.example.dialog.CustomDialogOrder;
Import COM.EXAMPLE.FRAGMENTMYTEST.R;
Import Com.example.utils.ToastUtils;
Import Com.handmark.pulltorefresh.library.PullToRefreshListView;  public class Myadapter extends Baseadapter {private context; private list<computerroomstatus> data; private
Layoutinflater Layoutinflater;
Private String Room;
Private Viewholder holder = null;
Private Pulltorefreshlistview Mpullrefreshlistview; Public Myadapter (context context, list<computerroomstatus> data, String room,pulltorefReshlistview mpullrefreshlistview) {this.context = context; this.data = data; this.room = room; this.mpullrefreshlistview
= Mpullrefreshlistview;
Layoutinflater = Layoutinflater.from (context); @Override public int GetCount () {return data.size ():} @Override public Object getitem (int position) {return Data.get (
position); @Override public long getitemid (int position) {return position;} @Override public view getview (int position, View conv Ertview, ViewGroup parent) {if (Convertview = null) {holder = new Viewholder (); Convertview = Layoutinflater.inflate (R.
Layout.lv_item, NULL);
Holder.seatid = (TextView) Convertview.findviewbyid (R.id.seatid);
Holder.time1 = (Button) Convertview.findviewbyid (r.id.time1);
Holder.time2 = (Button) Convertview.findviewbyid (r.id.time2);
Holder.time3 = (Button) Convertview.findviewbyid (R.ID.TIME3);
Holder.time4 = (Button) Convertview.findviewbyid (R.ID.TIME4);
Holder.time5 = (Button) Convertview.findviewbyid (R.ID.TIME5); Holder.time6 = (Button) converTview.findviewbyid (R.ID.TIME6);
Convertview.settag (holder);
else {holder = (Viewholder) Convertview.gettag ();}//Get the Entity class object in the collection final computerroomstatus s = data.get (position);
Holder.seatId.setText (S.getid () + "");
Holder.time1.setOnClickListener (new Lvbuttonlistener (position));
Holder.time2.setOnClickListener (new Lvbuttonlistener (position));
Holder.time3.setOnClickListener (new Lvbuttonlistener (position));
Holder.time4.setOnClickListener (new Lvbuttonlistener (position));
Holder.time5.setOnClickListener (new Lvbuttonlistener (position));
Holder.time6.setOnClickListener (new Lvbuttonlistener (position));
A little bit does not matter ... return convertview; Class Lvbuttonlistener implements View.onclicklistener {private int position; lvbuttonlistener (int pos) {position = PO
S @Override public void OnClick (View v) {switch (V.getid ()) {case R.id.time1:showdialog (position, "1");
D.time2:showdialog (Position, "2");
Break
Case R.id.time3:showdialog (Position, "3");
Break Case R.id.time4: ShowDialog (Position, "4");
Break
Case R.id.time5:showdialog (Position, "5");
Break
Case R.id.time6:showdialog (Position, "6");
Break
Default:break; }} public void ShowDialog (final int id, final String witch) {final Customdialogorder.builder Builder = new Customdialo
Gorder.builder (context);
Builder.settitle ("Appointment on the Machine"); Builder.setpositivebutton ("Appointment", new Dialoginterface.onclicklistener () {public void OnClick (Dialoginterface dialog,  int which) {Dialog.dismiss ()///Submit when submitting application room and position and witch toastutils.mytoast (context, Room + ":" + ID + ":"
+ witch);
TODO concatenation string get to the specified interface//todo and refresh execution Drop-down flush mpullrefreshlistview.setrefreshing (TRUE);
}
}); Builder.setnegativebutton ("Cancel", new Android.content.DialogInterface.OnClickListener () {public void OnClick (
Dialoginterface dialog, int which) {Dialog.dismiss ();}});
Builder.create (). Show ();
} class Viewholder {TextView seatid;
Button time1, Time2, Time3, Time4, Time5, Time6; }

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